修复控制流保护在#153的错误

注意到 mkaring 在 1.4.0版本中对控制流保护做出了误操作（272行）
将src => statementLast.Contains(src)，错误修改成了src => !statementLast.Contains(src)，导致了保护后的程序出现了错误的循环，这里特此做出修复！

Author: wujiayang2007

Confuser.Protections/ControlFlow/SwitchMangler.cs

@@ -260,16 +260,8 @@ public override void Mangle(CilBody body, ScopeBlock root, CFContext ctx) {
 						                    src.Offset >= block.Instructions.Last().Offset))
 							return true;
 
-						// Disable flow obfuscation for blocks reached by jump instructions.
-						// Bug in #153 caused exactly this behaviour, expect for allowing wrong jump instructions
-						// There is another issue present here tracked here:
-						// https://github.com/mkaring/ConfuserEx/issues/162
-						// Until this issue is resolved, the ctrl flow obfuscation will be severely reduced.
-						if (srcs.Any())
-							return true;
-
 						// Not targeted by the last of statements
-						if (srcs.Any(src => !statementLast.Contains(src)))
+						if (srcs.Any(src => statementLast.Contains(src)))
 							return true;
 					}
 					return false;